[W]hen great Aunt Ryder was exhausted with carrying her little nephews pick-a-back, Aunt Ellen was always willing to become a ‘gee-gee’ or riding-horse in her place, although certainly one of no very prancing and fiery temperament.

I once heard a gee-gee neigh. / I thought he was calling for heigh. / But a man tapped my head, / And smilingly said, / "It's just that he feels a bit geigh."

2015, E. Maud Graham, “End of the Camp Life”, in Michael Dawson, Catherine Gidney, and Susanne M. Klausen, editors, A Canadian Girl in South Africa: A Teacher’s Experiences in the South African War, 1899–1902, Edmonton, Alta.: University of Alberta Press, ISBN978-1-77212-046-2, page 88:

Oh, you don’t catch me on a gee-gee’s [footnote: A “gee-gee” is a horse.] back again, / It’s not the sort of place that you can doze on, / For the only ’orse that I think that I can ride / Is the one that the m’ssis dries the clothes on.

Then one day his bookkeeper didn't show up for work, just disappeared, the financial records and journals gone with him. / 'He stole from you?' / 'He blew it all on the gee-gees and cards. I had no idea. You just can't trust people Jamie.'